The CASI Nano Insulation Board is manufactured from selected inorganic materials, including Al2O3, SiO2, and CaO, through a fully automated continuous production line.
CASI nano insulation board features both the low thermal conductivity of insulation fiber and the strength of insulation bricks. With an operating temperature range of 900°C-1200°C, it can be used as a backing for various industrial kilns, effectively solving insulation and heat preservation issues.
CASI nano insulation board is completely fiber-free and does not pulverize or degrade in performance when exposed to high temperatures. It boasts low thermal conductivity, no shrinkage after heating, low thermal capacity, high compressive strength, excellent thermal shock stability, and high production volume.
Typical applications include backup insulation for metallurgical industry heat treatment furnaces, reheating furnaces, roller hearth kilns, ceramics kilns, rotary kilns, glass furnaces, electrolytic aluminum smelters, boilers, hot air ducts, building fireproofing, and insulation.
| Property | CASI Nano Insulation Board | Calcium Silicate Board |
| Material
Composition |
Al2O3, SiO2, CaO | CaO, SiO2, contains fibrous materials |
|
Thermal Conductivity |
Low, especially at high temperatures |
Low.
Crystalline water dehydrates at around 680°C. Above this temperature, thermal conductivity rises significantly, and insulation performance degrades. |
| Operating Temperature
Range |
Below 1200°C | Below 900°C |
|
High-Temperature Stability |
PLC within ±0.5% at classification
temperature, tiny shrink and NO pulverize at high temperatures, maintains performance over long-term use |
PLC around 2% at classification
temperature, big shrink and pulverize at high temperatures, performance deteriorates over time |
| Strength | High strength, suitable for high-stress environments | Moderate strength, suitable for lower stress environments |
| Environmental
Impact |
Fiber-free, harmless to humans, environmentally friendly | Contains fibers, may irritate humans, has some environmental impact |
| Lifespan | Long | Shorter |
|
Production Process |
Fully automated continuous production line, strict quality control | Traditional production process, variable quality |
| Property | CASI Nano Insulation Board | Ceramic Fiber Board |
| Material Composition | Al2O3, SiO2, CaO | Al2O3, SiO2, ZrO2, fibrous materials while contains organic binder |
|
Thermal Conductivity |
Low, especially at high temperatures |
Low.
At high temperatures, it crystallizes and pulverizes, leading to increased thermal conductivity and significant degradation of insulation performance. |
| Operating Temperature Range |
Below 1200°C |
Below 1200°C |
|
High-Temperature Stability |
PLC within ±0.5% at classification
temperature, tiny shrink and NO pulverize at high temperatures, maintains performance over long-term use |
PLC around 3.5% at classification
temperature, big shrinkage joints and pulverize at high temperatures, performance deteriorates over time |
| Strength | High strength, suitable for high-stress environments | Low strength, suitable for lower stress environments |
| Environmental Impact | Fiber-free, harmless to humans, environmentally friendly | Fiber material, may irritate humans, has some environmental impact |
| Lifespan | Long | Shorter |
| Cost | Economic | Expensive |
| Items | Unit | CAS-95B | CAS-100B | CAS-100BH | CAS-110B | CAS-120B |
| Bulk Density | g/cm3 | 0.3 | 0.35 | 0.5 | 0.5 | 0.6 |
| Cold Crushing Strength | MPa | 0.4 | 0.6 | 1.8 | 0.8 | 1.2 |
| Permanent Linear Change ℃x12h | % | 0.5 (950) |
0.5 (1000) |
0.5 (1000) |
0.5 (1100) |
1 (1230) |
| Thermal Conductivity @400℃ | W/m•K | 0.105 | 0.105 | 0.11 | 0.115 | 0.09 |
| Chemical Analysis | ||||||
| SiO2 | % | 42 | 42 | 42 | 40 | 30 |
| Al2O3 | 15 | 15 | 15 | 13 | 10 | |
| CaO | 37 | 37 | 37 | 43 | 50 | |
